May 16, 1913. THE COLLIERY GUARDIAN, 993 I AIR PIPE MANR_sV-fl BWSTOU, STAFFORDSHIRE. Jj Telephone No. 72 Bilston. COLLIERY OWNERS MANUFACTURING BRICKS SHOULD SUBSCRIBE TO THE BRITISH CLAY-WORKER The Organ of the Brick and Tile Trades. Published Monthly. Subscription 8s. per annum post free. Send for Specimen Copy to the Publisher, THE BRITISH CLAY-VORKER, 48, ESSEX-ST., LONDON, W.C. Absolutely the latest English Mining Dial is the THORNTON" MINING DIAL (A. J. Thornton & Geo. Eagle’s Patents). Constructed to stand wear, is designed on modern principles and up-to-date ideas. Made for Mine Surveying under mining conditions. All the working parts whose continued accuracy is so essential are encased and free from dust and grit. Illustrated descriptive booklet sent on application, also General Catalogue of Drawing and Surveying Instruments, 320 pages, 500 Illustrations. A. G. THORNTON Ld., Practical Manufacturers of Drawing if Surveying Instruments, Paragon Works, 19, King St. West, MANCHESTER. DEFER ORDERING MINERS’ ELECTRIC LAMPS UNTIL SEEING Stand No. 104, Row J, AT THE GREAT MINING MACHINERY EXHIBITION, ROYAL AGRICULTURAL HALL, LONDON, MAY 29th to JUNE 7th. ± M. S. Electric Gas Detector Lamps. F ancashire & Yorkshire Wagon Company U LIMITED (Established 1862), RAILWAY WAGON WORKS, HEYWOOD. NHAB MANCHESTER. MANUFACTURERS of RAILWAY WAGONS of every desciiption, for cash and on deferred payments extending over three, five, or seven yean. Railway Wheels and Axles, Axle Boxes, Cast and Wrought Ironwork of every sort made to pattern or drawings; Wagons repaired; Wheels turned up or re-tyred. Second-hand WAGONS Let out on simple Hire. J>H«m